# Orbit vs Isotopolis

The clearest difference is rating: Orbit at 4.8 against Isotopolis's 4.2. Orbit also leads on review sentiment (94% vs 63%) and update cadence (every 2 months vs every 37 months). Isotopolis's advantage is in-app purchases (none vs 7) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Orbit sells 7 one-off in-app purchases. Isotopolis asks for nothing beyond the download.

Orbit holds the better App Store score, 4.8 against 4.2. That said, the two scores are not equally well evidenced: Orbit has 7.6K ratings behind it against 10, so its average is the more settled of the two. Written reviews point the same way: 94% of Orbit's written reviews are positive against 63% of Isotopolis's.

Orbit ships an update every 2 months, Isotopolis every 37 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Orbit | Isotopolis |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (7.6K ratings)](https://appshunter.io/ios/app/orbit-playing-with-gravity/id991457817/reviews)** | [4.2 (10 ratings)](https://appshunter.io/ios/app/isotopolis/id1051370087/reviews) |
| Number of ratings | **7.6K** | 10 |
| Positive reviews | **94.4% of reviews** | 62.5% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 37 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 139 MB | 189 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [HIGHKEY Games](https://appshunter.io/developer/1170680369) | [Brian Winn](https://appshunter.io/developer/487088992) |

## What reviewers say

### Orbit

[App page](https://appshunter.io/ios/app/orbit-playing-with-gravity/id991457817)

This app is a meditative physics puzzler where you launch planets to create stable orbits around black holes. Explore a variety of levels, create your own challenges in a sandbox mode, and enjoy a visually artistic and relaxing experience.

**Highlights:** Gravity simulation puzzles, Create stable orbits, Sandbox mode for level creation, Community-created levels, Visual orbital mechanics, Minimalist graphics and relaxing music

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $1 contribution | $0.99 | one-time |
| Remove ads | $0.99 | one-time |
| $2 contribution | $1.99 | one-time |
| $3 contribution | $2.99 | one-time |
| Orbit Pro | $2.99 | one-time |
| $5 contribution | $4.99 | one-time |
| $10 contribution | $9.99 | one-time |

**What reviewers like**

- 🚀 Fire game
- 👍 Relaxing and Enjoyable
- 👍 Calming, fun, stimulating, humble
- 👍 Simple and yet complicated
- 👍 Elegant and easy

**What reviewers complain about**

- 🐛 In app purchased not reicevied
- 🐛 Purchase didn't work for sandbox & ad removal but it's fun.
- 🔒 Be ware of your data
- 🐛 Love-hate

**Reported bugs**

- In app purchase not received
- Sandbox mode not working
- Game crashing and unable to open

**Requested features**

- Dark mode option
- Ability to zoom in and out
- Ability to rotate the game to landscape on iPad
- Ability to edit and move existing objects in sandbox mode
- Ability to name planets and add moons


### Isotopolis

[App page](https://appshunter.io/ios/app/isotopolis/id1051370087)

Explore particle physics by accelerating, steering, and colliding particles to create new isotopes. Learn about the fragmentation process and the table of nuclides through engaging gameplay. This educational game is developed by scientists and students.

**Highlights:** Particle acceleration and steering, Isotope creation and discovery, Learn about fragmentation process, Explore the table of nuclides, Educational gameplay, Developed by scientists and students

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Orbit free?

Orbit is free to download, with in-app purchases available.

### Is Isotopolis free?

Isotopolis is free to download, with no in-app purchases.

### Which has better reviews, Orbit or Isotopolis?

Orbit is rated higher. Orbit averages 4.8 out of 5 from 7.6K ratings, while Isotopolis averages 4.2 from 10 ratings.

### Do Orbit or Isotopolis have ads?

Orbit shows ads; Isotopolis does not.

### Which is updated more often, Orbit or Isotopolis?

Orbit ships an update every 2 months, and Isotopolis every 37 months. Most recently, Orbit was updated on October 26, 2026 and Isotopolis on October 24, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*